Why is the animal called a chicken?

Because it is!  It was a new beginning for our chickens yesterday.  They have finally grown enough to allow them outside.  We opened the hatch and waited....and waited....and waited.  The birds were too chicken to go outside.  Finally a brave one dared the jungle of high grass that waits for them outside and by today they were all making little paths through the high grass.  Where we lived on Vancouver Island were no predators of chickens.  Where we live now has more predators than I can list easily.  Some are owls, weasels, and hawks.  Now I am not talking about the odd hawk you might see, our fence posts around here are dotted with them.  Anyway, because of all the predators the chickens need to be enclosed to be safe, if you want them outside they must be netted in.  Well the area around the brood/laying coop is netted only 3 feet off the ground and has no human entrance.  This is why the grass is so long.  We have a couple of other bird areas and next year we hope to have turkeys and ???  Anyone have any suggestions?